Yes. To protect personal information, do not include any personal identifying information not required by the IRS on your forms.
Protect Personal Information
Because Forms 990, 990-EZ, 990-PF, and certain Forms 990-T by law must be made publicly available by the IRS and the filer, exempt organizations should not include any personal identifying information, such as social security numbers not required by the IRS, on these forms.
DISCLAIMER: This information is not intended to provide legal or accounting advice, or to address specific situations. Please consult with your legal or tax advisor to supplement and verify what you learn here.